Biology of the Membracidae of the Cayuga Lake Basin 261 



angles produced, triangulax, flattened, blunt, tips dark; dorsal crest nearly square, truncate 

 at tip, posterior margin pale; posterior process long, sharp, not quite reaching tips of tegmina. 



Tegmina smoky hyaline, bases opaque and punctate, tips brown. Undersurface of thorax 

 flavous; abdomen brown. Legs ferruginous. 



Length 8.5 mm.; width 5 mm. 



33. Telamona concava Fitch (Plate xxvtt, 7) 



1851 Telamona concava Fitch, Cat. Ins. N. Y., p. 50. 



1851 Walk., List Hom.B. M., p. 1146. 



18.54 Telamona ornala Emm., N. Y. Agr. Eept. 5:155, pi. 3, fig. 8. 



1877 Telamona concava Butler, Cist. Ent. 2:221, no. 8. 



1890 Van Duzee, Psyche 5 : .391 . 



1890 Smith, Ins. N. J., p. 442. 



1893 Godg., Can. Ent. 25: 172. 



1894 Godg., Cat. Memb. N. A., p. 419. 

 1908 Van Duzee, Stud. N. A. Memb., p. 69. 



1908 Telamona ornata Van Duzee, Stud. N. A. Memb., p. 69. 



1909 Smith, Ins. N. J., p. 92. 



1909 Telamona cancava Van Duzee, Can. Ent. 41 :383. 



1915 Funkh., Fitch's Types, p. 50. 



1916 Van Duzee, Check List Hem., p. 60, no. 1648. 



\'ery rare. Only two records for the basin, l)oth from Ithaca; one speci- 

 men taken by D. F. Atkinson on June 30, 188.5, and the other taken on 

 August 30, 1890, collector not recorded. Both specimens are in the 

 Cornell University collection. 



Distinct because of the peculiar step-like notch in the dorsal crest. 

 Hosts and habits unknown. 



Technical description. — Large, well-marked species, with distinct notch on upper posterior 

 angle of high crest; yellowish with distinct brown markings; posterior process not reaching 

 tips of tegmina; tegmina hyaJine with brown tips. 



Head nearly as long as broad, punctate, pubescent, sculptured, greenish yellow with brown 

 markings, brown protuberance near internal upper angle of each vertex; base strongly sinuate; 

 eyes large, gray-brown; ocelli small, prominent, orange, slightly protruding, nearer to each 

 other than to the eyes; clypeus triangular, continuing inferior outline of face, tip narrow, 

 somewhat projecting, hairy. 



Prouotum coarsely punctate, not pubescent, greenish yellow marked with patches of brown, 

 crest entirely brown, brown fascia from posterior base of crest to lateral margins of pronotum, 

 extremity of posterior process brown; metQpidium convex, median carina prominent; humeral 

 angles prominent, triangular, flat, black line near anterior margin, tips blunt; dorsal crest 

 high, quadrate, distinctly sinuate or notched at upper posterior angle, posterior margin 

 nearly perpendicular; posterior proce.ss long, straight, pointed, almost reaching tips of tegmina. 



Tegmina hyaline, veins prominent, bases somewhat punctate, tips clouded with brown. 

 Undersurface of body flavous. Legs yellow; tibiae mottled with brown. 



Length 10 mm.; width 5.5 mm. 



34. Telamona projeda Butler (Plate xxvir, 8) 



1877 Telamona -projeda Butler, Cist. Ent. 2:221, pi. 3, fig. 12. 



1908 Telamona cucullata Van Duzee, Stud. N. A. Memb., p. 70, pi. 2, fig. 10. 



